Hey everyone! I’m having trouble getting n8n up and running using Docker. When I try to start it with sudo docker-compose up, I keep encountering YAML unmarshal errors. It appears that there are duplicate keys in the configuration, including ‘image’, ‘restart’, ‘ports’, and ‘volumes’. Has anyone else dealt with this issue or found a solution? I would really appreciate any advice or tips as I’m still getting familiar with Docker. Thanks so much for your help!
Hey SwiftCoder15, I’ve been through the n8n Docker setup gauntlet myself. Those YAML errors can be a real pain. Here’s what worked for me:
First, I’d recommend grabbing a fresh copy of the official n8n docker-compose.yml from their GitHub. Sometimes, copying and pasting can introduce weird formatting issues.
Next, open it in a good text editor that shows whitespace characters. I use VSCode with a YAML extension. This helps spot those sneaky indentation problems.
Also, watch out for environment variables. If you’re using them, make sure they’re properly defined and not causing any confusion in the file.
Lastly, if you’re still stuck, try running ‘docker-compose config’ before ‘up’. It’ll validate your YAML without actually starting anything.
Stick with it - once you get past this hurdle, n8n is pretty awesome to work with!
yo SwiftCoder15, i had similar issues. check ur indentation in the yaml file. sometimes extra spaces can mess things up. also, make sure u don’t have any duplicate keys. use a yaml validator online to catch errors. good luck with ur setup!
I’ve encountered similar issues with Docker and YAML parsing. Here’s what I’d suggest:
Double-check your docker-compose.yml file for any duplicate keys. It’s easy to accidentally copy-paste a section and forget to change the key names.
Use a YAML-aware text editor or IDE. Many offer syntax highlighting and error detection for YAML files, which can be incredibly helpful.
Try running ‘docker-compose config’ before ‘docker-compose up’. This command will validate your YAML structure without actually starting the containers.
If all else fails, consider starting from scratch with a minimal docker-compose.yml file for n8n and gradually add your customizations. This can help isolate where the problem is occurring.
Remember, YAML is very particular about indentation, so make sure everything lines up correctly. Good luck with your setup!